PDB Statistics: PDB Data Distribution by Molecular Weight (Entity)

Molecular weight is calculated for each chemically distinct component of a PDB structure, e.g. protein, nucleic acid.

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Molecular Weight (Daltons)Number of Entities
< 5K41,334
5K - 10K46,912
10K - 15K76,534
15K - 20K58,795
20K - 25K57,421
25K - 30K45,488
30K - 35K32,823
35K - 40K29,298
40K - 45K21,689
45K - 50K16,240
50K - 55K13,553
55K - 60K9,910
60K - 65K6,879
65K - 70K5,146
70K - 75K3,670
>= 75K29,952